Hcigar VT Inbox has unique design with internal e-juice bottle. VT Inbox put the e-juice bottle inside of the VT Inbox internal e-juice bottle directly connect the atomizer pass filling e-juice tube. The bottle can hold large capacity of 8ml. And it has classic square box shape double-sided detachable magnetic cover replaceable personalized cover. The USB port not only for charging but also be connected to the computer to customizer through Escribe sofeware.